08-04-2013, 10:17 PM
I fished with Orvis Guide of the Year Tim Linehan this year and asked him that very question. He uses fluro for tippet material on all rigs. He uses a blood knot and we never had one slip or break in four days. (We caught browns and rainbows to four pounds on 6X tippets and #20 nymphs.)
With dries, he believes that the fluoro - which sinks slightly - helps eliminate "leader shadow" that mono causes when it rides in the surface film. Fluoro doesn't sink enough to drown a dry fly in my experience, but it does sink just enough to do as described above.
I can tie a uni-uni knot easier and faster than I can tie a blood knot, so that's what I use. I've had them pull through when using three turns in the fluoro uni, but never with five. So I use five turns in both the mono and fluoro.
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With dries, he believes that the fluoro - which sinks slightly - helps eliminate "leader shadow" that mono causes when it rides in the surface film. Fluoro doesn't sink enough to drown a dry fly in my experience, but it does sink just enough to do as described above.
I can tie a uni-uni knot easier and faster than I can tie a blood knot, so that's what I use. I've had them pull through when using three turns in the fluoro uni, but never with five. So I use five turns in both the mono and fluoro.
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